baber/WOPTO huggingface dataset:
Patent GB-656906-A (GB)
Title: Fuel pump
IPC: F02M41/14
Filed: 1948-08-03
Abstract: 656,906. Fuel-injection systems. ROOSA, V. D. Aug. 3, 1948, No. 20517. Convention date, Aug. 11, 1947. [Class 102(i)] [Also in Group XXIX] in a fuel-injection system, a feed pump 2 draws fuel through an inlet 5 and delivers to an outlet 8, the maximum pressure being controlled by a relief valve 15. The passage 8 is connected through an adjustable throttle valve 10, to a port 11 that enters the bore containing a rotary distributing valve 13 that has a number of radial ports 35 that connect consecutively with the port 11. The distributing valve has a diametral bore in which slide pistons 43 contacting rollers 44 that are actuated by the stationary cam 45. As the pistons reciprocate fuel is pumped to the groove 40 that is connected consecutively to a number of outlets leading to the engine cylinders. Adjacent the groove 40 is a second groove 67, Fig. 8, that after an injection, immediately opens the outlet to groove 68 that is connected to the low pressure side, e.g. through valve 71, to prevent drip. The rollers have pins that enter inclined grooves on plates 48 so that by rotating the plates, the extent of the outward movement of the plungers is limited. The cam 45 is connected to a tongue 53 that engages an inclined groove 55 in a piston 56 loaded by springs 57 and subjected to the delivery pressure of the feed pump 2 so that the time of injection is varied in accordance with the speed of the engine. The metering valve has a longitudinal groove 14 that connects the passages 8, 11, so that the flow is varied by rotation of the valve. In a modification, the slot is inclined and the valve may be rotated to vary the flow but is in addition spring- loaded and exposed to the feed pump pressure so that it is moved axially to reduce the flow and after closing the passages is arranged to connect the passage 8 to byepass. The metering valve may also be adjusted by a centrifugal governor 89 acting through levers 82 and 80.
Patent GB-1304433-A (GB)
IPC: H03B9/14
Filed: 1970-04-29
Abstract: 1304433 Waveguide resonant structures WESTERN ELECTRIC CO Inc 29 April 1970 [5 May 1969] 20561/70 Heading H1W [Also in Division H3] An oscillator circuit including a bulk negative resistance effect semi-conductor diode 12 connected to a D.C. source 13 and a load R 1  has a first parallel resonant circuit 14 with a resonant frequency f arranged to give oscillation in the diode at the frequency f and a second resonant circuit 15, 16, resonant at a frequency harmoniccally related to f, coupled to the diode to add the harmonic frequency in correct phase to the fundamental to enhance efficiency. The diode 12 may be of GaAs and is operated in the LSA mode. Resonator 15 adds a second harmonic component to the voltage across the diode 12 and resonator 16 adds a third harmonic component to the current through the diode (Fig. 4, not shown). The current waveform is approximately a square wave and the effect of the second harmonic component on the voltage oscillation is to reduce the oscillation swing in the positive resistance region of the diode characteristic so as to increase the overall efficiency of the oscillator. The diode 25 (Fig. 5) may be mounted in an iris 24 in a waveguide 22 and an E-H tuner 27 in conjunction with a tuning plunger 28 are used to match impedances for transmission of the LSA frequency f to the load 23. The aperture 24 is of a shape and width (Figs. 6 and 7, not shown), so that the diode 25 is positioned at an electric field maximum of the fundamental and second harmonic and at a magnetic field maximum of a mode resonant at the third harmonic. The impedance between the diode 25 and outer points (P 1 , P 2 ) on the iris 24 may be three times that at the outer parts of the aperture from (P 1 , P 2 ) to the outer walls of the waveguide 22. This is achieved by reducing the height of the iris 24 at the outer parts. Alternatively the height may be constant and material having a dielectric constant nine times that between (P 1 , P 2 ) is inserted between the points (P 1 , P 2 ) and the outer walls of the waveguide. An equivalent circuit (Fig. 8, not shown), given of the waveguide arrangement of Fig. 5 and it shows a band pass filter (27<SP>1</SP>) as the E-H tuner 27. Oscillations may be started by transient effects or by applying a burst of R.F. energy.
Patent GB-192357-A (GB)
Title: Improvements relating to air ejectors
IPC: F01B25/00
Filed: 1922-07-27
Abstract: 192,357. Soc. Anon. pour l'Exploitation des ProcÚdÚs M. Leblanc- Vickers. Jan. 26, 1922, [Convention date]. Aspirating-apparatus, ejector. - An ejector system for withdrawing air from the main condenser of a steam engine is formed with two or more successive stages having several parallel ejectors in each stage; from Each stage the mixed fluids are delivered in common to one section of a special double condenser, cooled by the condensate from the main condenser, the condensate from the first section of the double condenser being returned to the main condenser, and that from the second section passing to the boiler feed tank. Inducing steam is supplied from a common pipe b, Fig. 1, to the ejectors of the first stage A<1>, which draw through a branch a from the main condenser, and deliver to the first section c<1> of the special condenser, from which air is in turn withdrawn at a connection d by the ejectors A<2> of the second series having a common steam supply e, and forced into the second section c<2> from which it escapes eventually through an atmosphere outlet g. Fig. 8 shows that the condensate pump L of the main steam condenser G circulates the liquid through the sections of the double condenser in series as cooling-water by the pipe h, and that it ultimately passes by pipes i, m to the feed-tank, to which condensate from the second section also passes by a pipe n, while condensate from the first section flows by a pipe l back to the main condenser. The counterflow arrangement of the double condenser is shown in Fig. 4, according to which the mixed fluids in the first section c<1> are delivered to an inner compartment formed by an inner cylinder F<1>, and are there acted upon by water that has previously passed through the annular outer chamber, and proceeds by the large central tube to the central tubes of the second section c<2>, passing back through the outer tubes, so that with the same object the mixed fluids are in that section delivered to the outer section.
Patent GB-652539-A (GB)
Title: Improvements in swath turners and windrowers
IPC: A01D78/14
Filed: 1948-08-05
Abstract: 652,539. Haymaking. BAMFORD, C. J., and BAMFORD, H. V. Aug. 5, 1948, No. 20659. [Class 6(iii)] Tractor-driven swath turner having three or more laterally spaced turning heads carrying tines has the turning heads and supporting wheels so disposed that when the supporting wheels and tractor wheels run between the swaths, the heads are in the correct position for turning the swaths. Tractor-propelled swath turner or windrower has three turning heads 10, 11, 12, and the machine frame comprises transversely-extending angle-section members 13, 14 connected by spaced vertical members 15. The machine is attached to the tractor by an upper arm 17 and two lower arms 20 pivoted on a rod 19 extending between spaced lugs 18 on the lower frame member 14. Between the centre head 11 and the outside heads 10, 12, are bearings 21 in which slide standards 22 carrying castor wheels 24, the height of the frame above the ground being varied by a screw adjustment 25. Three pairs of brackets 26, 27, 28, extending rearwardly of the frame carry bearings 29 supporting a transverse shaft 30 carrying gear boxes 31 for operating the turning heads as described in Specification 527,981, [Group XXVIII]. The centre head 11 is in the centre of the frame and midway between the road wheels 32 of the tractor, while the outer heads 10, 12 are outside the wheel tracks of the tractor, the supporting wheels 24 being midway between the centre head and the outside heads, while being in alignment with the tractor wheels. Alternatively the supporting wheels 24 may be at the extremities, of the frame outside the outer turning heads. Each of the rotating heads can be independently reversed. Each head has a lug 33 connected by a spring 34 to a projecting arm 35 mounted on the frame. The outer heads 10, 12 may be adjustable laterally along the transverse driving shaft to allow for differences in the distance between the swaths. The shaft 30 is driven by a telescopic shaft 37 connected by a universal joint 39 to a shaft 40 driving the gearing in the gearbox 41. In a modified construction the machine frame has three supporting wheels, two of which are aligned with the tractor wheels, while the third is behind the centre head 11 so that the machine is self-supporting when uncoupled from the tractor. The shaft 30 may be driven from one or more of the supporting wheels instead of the power take-off. In swath turning all the heads are rotated to direct the swath against the adjacent swath boards 52. In windrowing the rotation of the outer heads is reversed so that the rotating head at the delivery end turns inwardly, the swath board between this and the central head being reversed. The frame may be rigidly attached to the tractor or when supported by road wheels have pivotal connection to allow it to follow inequalities of the ground. The frame of the machine and the transverse shaft may be in sections as in Specification 652,538.
Patent GB-1029918-A (GB)
Title: Improvements relating to the printing of wool
IPC: D06P1/653
Filed: 1964-05-20
Abstract: Woollen material, chlorinated or non-chlorinated is printed by printing with a paste comprising at least one water soluble acid dye, and as carrier a mixture of an amide or amides of aliphatic monocarboxylic acids having 8-14 carbon atoms said amide having at least one low hydroxylkyl or low alkoxyalkyl group in the primary or secondary amine from which it is formed and a sulphated surface-active organic polyglycol ether or a soluble salt thereof, the weight ratio of amide to ether being 2 : 1 to 1 : 2, the paste being applied at temperatures below the drawing temperature of the dyestuff and at a pH of at least 2, and the dye is fixed by steaming. Any acid azo dye which may be metallised may be used, the print paste may also contain conventional additives e.g. thickeners.
Patent GB-805266-A (GB)
Title: Improvements relating to cast iron crushing elements
IPC: C22C37/04
Filed: 1955-07-18
Abstract: A crushing element, e.g. a roll, consists of martensitic cast iron presenting a definite chill, and having a hard wear-resistant face and a tough ductile backing containing spheroidal graphite, the cast iron containing 3.4 to 4.2 per cent C, 0.6 to 1.1 per cent Si, 3.5 to 5.0 per cent Ni, 0.4 to 1 per cent Cr, 0.1 to 0.6 per cent Mn, and enough Mg, not exceeding 0.1 per cent, to form spheroidal graphite in the backing, the balance being essentially all Fe.  Up to 2 per cent Cu, 0.5 per cent Mo, 0.2 per cent P may also be present, the S being usually less than 0.02 per cent.  In manufacture, the iron must be inoculated with e.g. Si in amount 0.2 to 0.6 per cent by weight of the molten metal.
Patent GB-1506631-A (GB)
Title: Direct fired heater for heating a process medium
IPC: F27D99/00
Filed: 1975-05-15
Abstract: 1506631 Silencing gaseous flow LUMMUS CO 15 May 1975 [17 May 1974] 20752/75 Heading F1B [Also in Division F4] The major part of the shell of a direct fixed heater housing a burner 17 is enclosed within an outer jacket 24 through which air passes to the burner and a layer 38 of acoustic and thermal insulation is applied to the inside of the jacket 24. The lining 38 may be of fibreglass or mineral wool.
Patent GB-425152-A (GB)
Title: Improvements in gas-masks
IPC: A62B18/08
Filed: 1934-07-16
Abstract: 425,152. Gas-masks. SENFT, A., 2, Bohmestrasse, Leipsic, Germany. July 16, 1934, No. 20774. Convention date, July 22, 1933. [Class 81 (ii)] Gas - masks are made to fit the forehead and cheeks gastightly by the provision along their edges a of straps such as d, centrally joined to the masks at the forehead and chin and having interposed packing members. The inner surfaces of which conform to the shape of the face whereas the outer surfaces form a regular curve. The packing members may comprise single pads b of sponge rubber or felt or series of roundedtopped trapezoidal bosses c for example of wood, and may be secured to the mask or to the straps. Alternatively the packing members may be formed by series of studs carrying U-shaped springy strips or the bosses c may be in two parts with interposed springs. The straps d are positioned by loops e. In a modification the straps terminate at the upper corners of the mask and are there joined to separate head straps.
Patent GB-382931-A (GB)
Title: Improvements in and relating to cut-outs for incandescent electric lamps
IPC: H01K1/70
Filed: 1932-07-23
Abstract: 382,931. Cut-out arrangements for electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Severin, C. ; 914, Helmsdale Avenue, Cleveland Heights, and Peters, L. R. ; 1132, Ansel Road, Cleveland, both in Ohio, U.S.A.) July 23, 1932, No. 20818. Convention date, July 23, 1931. [Class 39 (ii).] A cut-out for electric incandescent lamps adapted for series connection comprises a mass of paste 16, Figs. 1 and 3, adjacent to a bead 15 of insulating material supported by the leading-in wires 13, 14 within the bulb 10, the paste being of such resistance that normally it is nonconductive but becomes conductive upon the failure of the filament 12 and the consequent increase of voltage across the lamp terminals. The material of the cut-out consists preferably of a mixture of a metal powder, a finely powdered insulating material and a binder made up into a paste, the powdered insulating material preferably being non- hygroscopic. In the example the paste is made up of fine iron powder which has been reduced in hydrogen, together with powdered cryolite and a binder consisting of sodium silicate. The insulating bead 15 may be made of glass and provided with a depression 17 into which the pasty mass 16 enters.
Patent GB-183856-A (GB)
Title: Improvements in lumber transporting devices
IPC: B65G19/22
Filed: 1922-07-31
Abstract: 183,856. Nordstr÷m, L. July 30, 1921, [Convention date]. Endless-chain conveyers with comb carriers; inverted harrow and rake endless-chain conveyers. -Hooks 2 attached to two or more parallel endless chains 1 push timber 4 along a table 3 to a sorting station. After sorting, the timber is placed on the hooks and conveyed to store.
Patent GB-199280-A (GB)
Title: Improvements in and relating to fasteners for cords, ropes and the like
IPC: B65D27/24
Filed: 1922-07-31
Abstract: 199,280. Corbett, S. M., and Rogers, D. B. July 31, 1922. Cleats. - A clip for securing lacings, cords, ropes &c. of the kind having a base, a back-spring and clamping tongue, has a substantially channelshaped keeper 18 for the tongue 16, provided at the bend between the base B and the back-spring 15, so as to cause both the tongue and the backspring to flex on inserting the cord. Ribs 17 on the tongue engage grooves 13 in the base, and projections 14 retain the cord in position. Prongs 11 are provided for mounting the device and the tongue 12 prevents the fastener rocking backwardly. Fig. 2 shows how the device is bent to form the finished article.
Patent GB-847733-A (GB)
Title: Improvements in and relating to the purification of olefin polymers
IPC: C08F10/00
Filed: 1958-06-30
Abstract: Olefin polymers containing residual metal catalyst residues are purified by contacting the olefin polymer at an elevated temperature, e.g. 40-150 DEG  C, and in the absence of water, with an alcohol containing at least 2 carbon atoms, and then extracting the treated polymer with an aqueous solution of an alkali metal hydroxide which has a pH of at least 10 and contains a compound which can form a complex with the metal or metals and which complex is soluble in the alkaline solution and subsequently recovering the polymer.  The olefin polymer may be treated with dry air or oxygen before or during the treatment with the alcohol. The preferred alcohol is ethanol. The compound which can form a complex may be an alkali metal tartrate, 2-ethyl-hexanediol-1,3, oxalic acid, gluconic acid, glucose, mannitol, glycollic acid, or ethylene diamine tetra-acetic acid.  The olefin polymer may be polyethylene, polypropylene, or poly-butylene.  The purified polymer may be used for making shaped articles.  Specifications 799,392, 799,823 and 801,031 are referred to.
Patent GB-441491-A (GB)
Title: Improvements in web cutting mechanism
IPC: B26D7/26
Filed: 1934-07-17
Abstract: 441,491. Web-cutting machines. QUICK, C. G., BENNISON, W. E., ALEXANDER, D. A. H., 109. Borough Road, London. July 17, 1934, No. 20945. [Class 31 (i)] A web is cut into ribbons by co-operating cutting elements 11, 27 adjustably secured to parallel shafts 9, 29 which are axially adjustable, the shaft 9 being carried by arms 13 on a shaft 14 so as to be angularly adjustable there-around to vary the overlap of the cutting elements. One end of the shaft 29 is slidable and rotatable in a bearing 31 and the other end is rotatable in a bearing 32 carried by a sleeve 33 adjustable by a hand-screw 35. One end of the shaft 14 is rotatable but not slidable in a sleeve 15 which is axially adjustable by a hand-screw 20, and the other end is slidable in and rotatable with a sleeve 22 which can be turned by a handle 24. Specification 441,146, [Group XVI], is referred to.
Patent GB-1314423-A (GB)
Title: Liquid developer for use in electrostatic photography
IPC: G03G9/13
Filed: 1970-05-01
Abstract: 1314423 Electro-photography RICOH KK 1 May 1970 [10 May 1969] 21092/70 Heading G2H A liquid developer comprises an insulating liquid carrier and a dispersed toner formed by coupling a diazotized amino dye with a mixture of at least two vinyl compounds, the first having a C 7-16  alkyl radical and the second determining whether the toner is positive or negative and the proportion of dye to mixture being 10-30%. The dye may be tetra-4-amino-copper phthalocyanine, 2, 4, 6-tri-(4-amino-1-anthraquinonylamino)- 1, 3, 5-triazine, or 2, 6-dichloro-p-phenylene diamine. A number of azo dyes are also specified. Lists of vinyl compounds are given. Vinyl compounds producing a positive charge may have an epoxy, hydroxy, carboxy, carboxyallyl, or nitro group and may be used in a molar ratio based on the first vinyl compound of 1/4 to 2/3. Vinyl compounds producing a negative charge may have an amino, amido, or chloro group and may be used in a molar ratio based on the first vinyl compound of 0.1/9.9 to 3/7. Methyl, ethyl or butyl methacrylate may be used as catalyst. A non- ionic surface active agent may be present during coupling. The resulting toner may have a grain size of 0.01-0.1 micron.
Patent GB-256790-A (GB)
Title: Improvements in fire and acid-proof plastic substances
IPC: C04B33/13
Filed: 1925-08-24
Abstract: 256,790. Wolfsholz, A. Aug. 24, 1925. Coatings.-A plastic fireproof substance useful as a coating for metal, glass, or earthenware vessels is composed of a highly refractory mineral, such as zirconium oxide or silicate or the like, and a binding agent obtained by dissolving metal salts in the corresponding acid. Preferably a salt of a light metal is used, for example aluminium or calcium or magnesium phosphate dissolved in phosphoric acid or calcium sulphate in sulphuric acid.
Patent GB-1488203-A (GB)
Title: Toy cash register
IPC: B41J3/36
Filed: 1975-05-19
Abstract: 1488203 Toy cash registers WESTERN STAMPING CORP 19 May 1975 [28 Aug 1974] 21202/75 Heading A6S A toy cash register has a series of pushbuttons 60, 61, Figs. 1, 3, 16, 18, each connected by relatively stiff arms 76, 77, 85 to an associated indicator tab 71 with thin, flexible hinge portions 78, 84, Fig. 18, at the ends of a lever 82, laterally projecting arms 87, 91, Fig. 16, with thin flexible hinge portions 89 mounting each lever to the register casing and providing fulcra for the assembly. The arms, &c may be moulded integrally from plastics, Fig. 16, and a mounting plate 95, Figs. 3, 5, secured to the base of the register receives studs 90, Figs. 16, 18 on the laterally projecting arms 87, 91. A generally comb-shaped spring, Fig. 28 (not shown), has a series of arms 100, Figs. 3, 7, one under each arm 77, which are stressed when the associated button 61 is depressed, Fig. 5, to biass the button, &c back to the initial position. As the arm 85 is raised, to project its indicator tab 71 up into a transparent housing 122, a projection 140, Figs. 5, 16, comes past and locks behind a resilient finger 152, Fig. 5, on a rockable lock shaft 150, journalled by trunnions 154, Fig. 3. When a release button 175, Figs. 1, 3, 5, is subsequently depressed, the shaft 150 is turned, the finger 152 withdrawn from the projection 140 and the spring arm 100 withdraws the indicator tab and ejects the button 61. On depressing a button 180, Figs. 1, 3, and an arm 181 to act through a pivoted link 182, a lever 200, Fig. 6, pivoted about a fulcrum tab 208, Fig. 7, in the base of the register, is raised so that its notch 220, Fig. 7, is lifted out of engagement with the rear wall 222 of a drawer 51. A loop spring 202 then slides the drawer 51 forward until a depending stud 251 engages a detent stop 252, the depending stud 251 engaging and actuating the clapper arm 265 of a bell 266 as the drawer slides out.
Patent GB-923397-A (GB)
Title: Improvements in or relating to trailer vehicles
Inventor: BOWDEN WILLIAM TURNER
IPC: B60G3/06
Filed: 1961-06-13
Abstract: 923,397. Road vehicle undercarriages. PEAK TRAILER & CHASSIS Ltd. June 13, 1961, No. 21211/61. Class 108(2). A trailer vehicle underframe made up of channel members 4, 5, 6 and box members 9, has two frames 16, 17, 18 pivoted at 10-14 to members 5, each frame member 18 supporting a wheel axle 19. A spring 23 engages a U-shaped member 21 welded to frame members 17, 18 and a plate 25 on box member 9, the members 9, 21 being interconnected by a shock absorber 26.
Patent GB-1293280-A (GB)
Title: Hermetically fixing a member made of a plastics material in an opening in a sheet or panel
Inventor: COSPEN JEAN
IPC: B29C65/56
Filed: 1971-04-19
Abstract: 1293280 Jointing CEBAL GP 19 April 1971 [6 Feb 1970] 21225/71 Heading B3V [Also in Division B8] An apparatus for hermetically fixing a twopart plastics member 1<SP>1</SP> 1<SP>11</SP> into an opening 5 in a metallic lid 4 (e.g. of a preserves can) consists of a screw driving device 11 and an ultrasonic generator 13. The end members 10 and 12 are of polygonal shape and engage with openings 8 and 9. The member 12 holds the member 1<SP>1</SP> rotationally still while the member 11 screws the members 1<SP>1</SP> and 1<SP>11</SP> together, until they are in a position as in Fig. 2 (not shown). The members 1<SP>1</SP> and 1<SP>11</SP> in this position are so tightly screwed as to cause a slight deformation of the plastics member in the region of the flange 6. The ultrasonic generator 13 is then activated, giving rise to localized fusion of the plastics material in the region of the flange which, under the action of the internal stress caused by the aforementioned deformation, causes the welding of the upper member 1<SP>1</SP> on to the flange 6. The drive member 11 is then used to further screw the members 1<SP>1</SP>, 1<SP>11</SP> together while the plastics material is still fixed. In a different embodiment, Fig. 7 (not shown), the two-part plastics member is used to rivet together two metal sheets (200, 200<SP>1</SP>).